University Chemistry ›› 2016, Vol. 31 ›› Issue (4): 55-59.doi: 10.3866/PKU.DXHX20160455

• Chemistry Laboratory • Previous Articles     Next Articles

Application of LED Photochemical Reactor in Teaching Environmental Chemistry Laboratory

Bing-Bing JI,Lin ZHANG*(),Mei XIAO*(),Jin-Jun LI,Feng WU,Chang-Gen ZHAN   

  • Published:2016-05-06
  • Contact: Lin ZHANG,Mei XIAO;
  • Supported by:


This paper introduced the design method and device of a novel LED photochemical reactor, and applied the reactor to Cr(Ⅵ) photo-reduction and photooxidation of organic arsenic in environmental chemistry laboratory teaching. The results showed that the efficiency of Cr(Ⅵ) photo-reduction was 95% in LED photochemical reactor with 394 nm irradiation, and the efficiency of photooxidation of organic arsenic was more than 80% in reactor with 664 nm irradiation. The application experiments showed that the reactor had good stability, safety and reliability, and could meet the requirements of environmental photochemistry laboratory teaching.

Key words: LED photochemical reactor, Photochemical reaction, Environmental chemistry, Laboratory teaching


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